Monday November 3, 2025

Summary

Between 8:17 AM PST and 9:22 AM PST on November 3, 2025, some users experienced significant latency in search results across Slack. In some cases, search results were outdated or incomplete.

We traced this back to a backend service responsible for processing search requests that experienced a high surge in memory usage. This caused the service to become temporarily unresponsive and stop processing search requests.

We restarted the affected services and increased capacity, resolving the issue for all affected users.

10:26 AM PST

Resolved

As of 09:22 AM PST, our Search functionality has recovered, and Search is back to normal. To mitigate this issue, we restarted the impacted services and shards. The cluster hosting the Search services is now healthy. No additional actions are required on your end. Thank you for your patience while we sorted out this issue.

10:02 AM PST

Investigating

We’re investigating an issue impacting Search. Some users may experience significant delays, or the search bar may become unresponsive/stuck loading when searching for recent messages or files. We have identified the issue and are actively working on a fix. We’ll share another update in 60 minutes or sooner if more information becomes available. Thank you for your patience.

9:31 AM PST